GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

20" Rim Question

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Old Aug 8, 2008 | 01:27 PM
  #11  
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Originally Posted by PSM
the gmt 800 had a 18mm offset. the gmt 900 have a 30mm offset. This means the rims will stick out about 12mm or 1/2". They should fit fine
half inch from the fender or the factory tire?
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Old Aug 8, 2008 | 09:48 PM
  #12  
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from the factory tire assuming the same tire width... if you had 265 then went 275 then half that width would also be added so total extension from stock tire would be 5+12=17mm
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